Home / 255,591.36-352,711.44-139,305.83

Finding the Fourth Proportional to 255,591.36, 352,711.44 and 139,305.83

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Solution

The fourth proportional to 255,591.36, 352,711.44 and 139,305.83 is: 192,239.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,591.36 : 352,711.44 = 139,305.83 : x
  2. Step 2: Convert to fraction form
    255,591.36/352,711.44 = 139,305.83/x
  3. Step 3: Cross multiply
    255,591.36x = 352,711.44 × 139,305.83
  4. Step 4: Simplify right side
    255,591.36x = 49,134,760,781.47
  5. Step 5: Solve for x
    x = 49,134,760,781.47/255,591.36
  6. Step 6: Final answer
    x = 192,239.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.